/* ===========================================================
   入口介面 portal.php — 抖音 / 優酷 風格大方塊入口
   桌電：常駐左側功能列 + 主區左上最新消息 + 子頁面大卡網格
   手機：頂部品牌列 + 最新消息 + 2 欄子頁面大卡（同排列原則）
   =========================================================== */
:root{
  --pf-bg:#0d0d11;
  --pf-bg-2:#15151c;
  --pf-bg-3:#1c1c24;
  --pf-line:#26262f;
  --pf-text:#ececf1;
  --pf-text-2:#a7a7b2;
  --pf-red:#fe2c55;
  --pf-blue:#00a1d6;
  --pf-radius:16px;
}
*{-webkit-tap-highlight-color:transparent}
.portal{background:var(--pf-bg);color:var(--pf-text);
  font-family:"Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
  min-height:100vh;display:flex;flex-direction:column}

/* ---------- 頂部品牌列（手機可見，桌電隱藏）---------- */
.portal__topbar{display:none;align-items:center;gap:10px;padding:14px 16px;
  background:linear-gradient(180deg,#15151c,#0d0d11);border-bottom:1px solid var(--pf-line)}
.portal__topbar .glogo{width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--pf-red),var(--pf-blue));display:flex;align-items:center;justify-content:center;font-size:18px}
.portal__topbar .pt{font-weight:900;font-size:18px}
.portal__topbar .search{margin-left:auto;color:#cfeffb;background:#00a1d622;
  padding:7px 14px;border-radius:999px;font-size:12px;font-weight:700}
.portal__topbar .tabs{display:flex;gap:18px;padding:6px 16px 12px;overflow-x:auto;
  background:#0d0d11;border-bottom:1px solid var(--pf-line);scrollbar-width:none}
.portal__topbar .tabs::-webkit-scrollbar{display:none}
.portal__topbar .tabs span{color:#9fd8ee;font-size:13px;font-weight:700;white-space:nowrap}
.portal__topbar .tabs span.on{color:#fff;border-bottom:2px solid var(--pf-blue);padding-bottom:4px}

/* ---------- 主體 ---------- */
.portal__body{display:flex;flex:1;min-height:0}

/* 常駐左側功能列（桌電） */
.portal__side{width:212px;flex:none;background:var(--pf-bg-2);border-right:1px solid var(--pf-line);
  padding:20px 14px;display:flex;flex-direction:column;gap:2px;position:sticky;top:0;align-self:flex-start;height:100vh;overflow-y:auto}
.portal__side .logo{display:flex;align-items:center;gap:10px;padding:4px 8px 18px;
  font-weight:900;font-size:17px;border-bottom:1px solid var(--pf-line);margin-bottom:12px}
.portal__side .logo .dot{width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--pf-red),var(--pf-blue));display:flex;align-items:center;justify-content:center;font-size:17px}
.portal__side .slabel{font-size:11px;color:#76767f;letter-spacing:1.5px;padding:0 8px 6px;text-transform:uppercase}
.portal__nav{display:flex;align-items:center;gap:12px;padding:12px 12px;border-radius:12px;
  color:#cfcfd6;font-weight:600;font-size:14.5px;text-decoration:none;transition:.18s}
.portal__nav .g{font-size:18px;width:22px;text-align:center}
.portal__nav:hover{background:#1e1e27;color:#fff}
.portal__nav.active{background:#fe2c5522;color:#fff}
.portal__nav.active .g{filter:drop-shadow(0 0 6px var(--pf-red))}

/* 後台管理入口：醒目紅色按鈕，置於功能列頁面列下方（不再貼底，避免短視窗被裁切） */
.portal__nav--admin{margin-top:14px;border-top:1px solid var(--pf-line);padding:13px 12px;
  color:#fff;background:linear-gradient(135deg,var(--pf-red),#ff5c7c);border-radius:12px;
  font-weight:800;box-shadow:0 8px 20px rgba(254,44,85,.35)}
.portal__nav--admin:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px)}
.portal__nav--admin:active{transform:scale(.98)}

/* 手機端常駐浮鈕（桌電隱藏） */
.portal__admin-fab{position:fixed;right:16px;bottom:18px;z-index:30;display:none;
  align-items:center;gap:8px;background:linear-gradient(135deg,var(--pf-red),#ff5c7c);
  color:#fff;font-weight:800;font-size:14px;text-decoration:none;
  padding:12px 18px;border-radius:999px;box-shadow:0 10px 26px rgba(254,44,85,.45)}
.portal__admin-fab:active{transform:scale(.96)}

/* 主區 */
.portal__main{flex:1;padding:26px 30px 60px;overflow:auto}
.portal__main h1.pf-title{margin:0 0 4px;font-size:26px;font-weight:900}
.portal__main .pf-sub{margin:0 0 22px;color:var(--pf-text-2);font-size:14px}
.portal__grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:176px;gap:18px}

/* 最新消息大卡（佔 2x2） */
.pf-news{grid-column:span 2;grid-row:span 2;border-radius:var(--pf-radius);overflow:hidden;
  background:linear-gradient(135deg,#2a1320,#3a1c2a);border:1px solid #fe2c5533;
  padding:24px;display:flex;flex-direction:column;justify-content:space-between;min-height:0;text-decoration:none;color:inherit}
.pf-news:hover{box-shadow:0 18px 44px rgba(254,44,85,.18)}
.pf-news .head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.pf-news .badge{background:var(--pf-red);color:#fff;font-size:12px;font-weight:800;padding:3px 11px;border-radius:999px}
.pf-news .ttl{font-size:19px;font-weight:800;line-height:1.5;margin:0}
.pf-news .date{color:#ff9bb3;font-size:12px;font-weight:600}
.pf-news .more{margin-top:14px;color:#ffd0da;font-size:13px;font-weight:700}
.pf-newslist{margin-top:12px;display:flex;flex-direction:column;gap:9px}
.pf-newslist .row{display:flex;gap:10px;align-items:center;padding:8px 11px;border-radius:10px;background:#ffffff0c}
.pf-newslist .row .d{color:#bbb;font-size:12px;flex:none;width:66px}
.pf-newslist .row .x{font-size:13px;line-height:1.4}

/* 子頁面大卡 */
.pf-card{position:relative;border-radius:var(--pf-radius);overflow:hidden;background:var(--pf-bg-3);
  box-shadow:0 12px 34px rgba(0,0,0,.4);cursor:pointer;text-decoration:none;color:inherit;
  transition:transform .22s,box-shadow .22s;display:block}
.pf-card:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(0,0,0,.6)}
.pf-card .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.pf-card .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.8))}
.pf-card .num{position:absolute;top:8px;left:11px;font-size:42px;font-weight:900;font-style:italic;color:#fff;
  text-shadow:0 3px 12px rgba(0,0,0,.6);z-index:2}
.pf-card .play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.6);opacity:0;z-index:2;
  width:54px;height:54px;border-radius:50%;background:#ffffff22;backdrop-filter:blur(4px);border:2px solid #fff;
  display:flex;align-items:center;justify-content:center;transition:.22s}
.pf-card .play::before{content:"";border-style:solid;border-width:11px 0 11px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.pf-card:hover .play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.pf-card .body{position:absolute;bottom:0;left:0;right:0;padding:15px;z-index:2}
.pf-card .glyph{font-size:22px;display:block;margin-bottom:3px}
.pf-card .t{font-size:16.5px;font-weight:700;margin:0 0 4px}
.pf-card .s{font-size:12px;color:#e6e6e6;line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 手機端（<860px）---------- */
@media(max-width:860px){
  .portal__topbar{display:flex;flex-wrap:wrap}
  .portal__topbar .tabs{display:flex;width:100%}
  .portal__admin-fab{display:flex}
  .portal__side{display:none}
  .portal__main{padding:16px 14px 40px}
  .portal__main h1.pf-title{font-size:22px}
  .portal__grid{grid-template-columns:1fr 1fr;grid-auto-rows:initial;gap:12px}
  .pf-news{grid-column:span 2;grid-row:auto;min-height:200px}
  .pf-card{aspect-ratio:3/4}
  .pf-card .num{font-size:30px}
  .pf-card .t{font-size:14.5px}
  .pf-card .play{opacity:1;transform:translate(-50%,-50%) scale(.8);top:42%}
}